Keiko has two coupons for a chair. Coupon A: 15% off of a $45 chair Coupon B: $4 rebate on a $45 chair Choose the coupon that gives the lower price. Then fill in the blank with the correct value. Coupon A gives the lower price. The price with coupon A is $ less than the price with coupon B. Coupon B gives the lower price. The price with coupon B is $ less than the price with coupon A.